Electrochemical Studies for Interaction between [Cu(salen)] and La(III) Ion in N,N-Dimethylformamide

The interaction between [Cu(salen)] and La(III) in DMF was studied by cyclic voltammetry and EQCM (Electrochemical Quartz Crystal Microbalance) technique. The quasi-reversible redox wave of [Cu(salen)] around −1.1 V vs Ag/AgCl was replaced by a reduction wave around −0.9 V on forming a [Cu(salen)···La] complex. The CuLa complex disproportionated on the electrode to exhibit an anodic stripping of Cu(0) to Cu(II) around +0.2 V.

[1]  O. Kahn,et al.  Design and Magnetic Properties of a Magnetically Isolated GdIIICuII Pair. Crystal Structures of [Gd(hfa)3Cu(salen)], [Y(hfa)3Cu(salen)], [Gd(hfa)3Cu(salen)(Meim)], and [La(hfa)3(H2O)Cu(salen)] [hfa = Hexafluoroacetylacetonato, salen = N,N‘-Ethylenebis(salicylideneaminato), Meim = 1-Methylimidazole] , 1997 .

[2]  Koji Yamamoto,et al.  Effect of Some d-Transition Metal Complexes of Salen-Type Ligands and Acetylacetone on Fluorescence of Europium(III) and Terbium(III) , 1994 .

[3]  D. E. Fenton,et al.  Heterodinuclear CuIIPbII and CuIIMII (M = Mn, Fe, Co, Ni, Cu, Zn) complexes of macrocycles with dissimilar 4- and 5-coordination sites : synthesis, structures, and properties , 1993 .

[4]  Koji Yamamoto,et al.  Effect of copper(II) and nickel(II) complexes of N,N′-di(salicylidene)-1,3-propanediamine on fluorescence of terbium(III) , 1993 .

[5]  Michael D. Ward,et al.  Measurement of interfacial processes at electrode surfaces with the electrochemical quartz crystal microbalance , 1992 .

[6]  A. Caneschi,et al.  Crystal and molecular structure and magnetic properties of a trinuclear complex containing exchange-coupled GdCu2 species , 1986 .

[7]  A. Caneschi,et al.  Crystal and molecular structure of and magnetic coupling in two complexes containing gadolinium(III) and copper(II) ions , 1985 .

[8]  I. Fragalà,et al.  Polynuclear complexes of lanthanides with nickel and copper Schiff bases as ligands , 1984 .

[9]  D. Hanna,et al.  Solution structures of Gd(III) adducts of schiff base Ni(II) complexes , 1982 .

[10]  D. Hanna,et al.  Structure of the Gd(fod)3 adduct of [N,N'-ethylenebis(acetylacetone iminato)]nickel(II) in solution by NMR spin-lattice relaxation studies , 1981 .

[11]  I. Fragalà,et al.  Lanthanide Compounds with SCHIFF Bases and with Copper(II) SCHIFF Base Complexes as Ligands , 1975 .

[12]  E. Sinn,et al.  Schiff base metal complexes as ligands1 , 1969 .